KVM: cpuid: mask more bits in leaf 0xd and subleaves
- EAX=0Dh, ECX=1: output registers EBX/ECX/EDX are reserved. - EAX=0Dh, ECX>1: output register ECX bit 0 is clear for all the CPUID leaves we support, because variable "supported" comes from XCR0 and not XSS. Bits above 0 are reserved, so ECX is overall zero. Output register EDX is reserved. Source: Intel Architecture Instruction Set Extensions Programming Reference, ref. number 319433-022 Reviewed-by:Radim Krčmář <rkrcmar@redhat.com> Tested-by:
Wanpeng Li <wanpeng.li@linux.intel.com> Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
parent
412a3c41
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